Gadget Review: These two powerbanks are a must-have for every traveller

With built-in SOS and rugged design, your search for powerbanks to recharge phones on-the-go ends here

ET-Stone Solar powerbank

Built by Indian start-up, Elixir Tech, the ET-Stone solar powerbank is designed to harness solar energy for battery recharge. The product was listed on Indigogo, but failed to generate enough funds. We wish it a better luck this time.

Tech special: Not sure which powerbank to opt for? Read on

ET-Stone Solar powerbank

What we liked
Its sleek, lightweight and comes with a bundle of accessories to make the most of solar energy. It can be used in the stand mode, using its 360-degree kickstand, or mounted on your car window using the car mount. The 3,100mAh battery is sufficient to give you one full charge on the go. The ETStone supports dual charging, which means you can charge both, the power bank and your phone at the same time. Charging the powerbank is possible via the 1.4W solar panel or by connecting it directly to a power point. The device also comes with LED lights and built-in SOS light signal to call for help in danger.

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What we didn't
The 3,100mAh battery capacity is low — so only one recharge on the go. Though Elixir claims to offer 1.5x faster recharging via its USB cable, there are no details on current output. Also, more output ports would have been a welcome choice.

Price: 3,999
Available at:

STK Neptune

STK Neptune

Launched earlier this month, this powerbank is built to last long during those rough outdoor travels.

What we liked
Weighing just 140g, the Neptune powerbank is made for outdoor travellers. It comes with IP67 protection rating. It is waterproof upto a depth of one metre (30 minutes) and is totally dustproof. The device comes with a built-in SOS light signal — powerful blinking lights that can be used to seek help when faced with danger. But most importantly, it has a 5,200mAh battery, sufficient to recharge your phone twice. The device also gets infrared pointer and a torch.

What we don't like
There's only one power output port, and the output current is just 1A, which means, slow charging.

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